EP 2270319 B1 20120418 - Method and device for cleaning particulate filters in exhaust gas systems of combustion engines
Title (en)
Method and device for cleaning particulate filters in exhaust gas systems of combustion engines
Title (de)
Verfahren und Vorrichtung zur Reinigung von Partikelfiltern in Abgasanlage von Verbrennungsmotoren
Title (fr)
Procédé et dispositif de nettoyage de filtres à particules dans les systèmes de gaz d'échappement de moteurs à combustion interne
Publication
Application
Priority
DE 102009025598 A 20090619
Abstract (en)
[origin: EP2270319A1] The method involves spraying a noncombustible, ash-free cleaning fluid e.g. aqueous alkaline fluid, into a particle filter at high pressure by a spray nozzle (14). Exhaust gas flows across area of the particle filter during an operation of the combustion engine in a quantity such that an interior of the particle filter is completely soaked. The cleaning fluid is injected at pressure of from 6 to 8 bars. The quantity of the cleaning fluid to be injected corresponds approximately to a half volume of the particle filter. An independent claim is also included for an apparatus for the executing a method for cleaning particle filters in an exhaust gas system of a combustion engine of a motor vehicle.
IPC 8 full level
F01N 3/023 (2006.01); B01D 41/04 (2006.01); F01N 3/029 (2006.01)
CPC (source: EP US)
B01D 46/79 (2022.01 - EP US); F01N 3/023 (2013.01 - EP US); F01N 3/0293 (2013.01 - EP US); B01D 2279/30 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2270319 A1 20110105; EP 2270319 B1 20120418; EP 2270319 B2 20160720; AT E554273 T1 20120515; CA 2707878 A1 20101219; DE 102009025598 A1 20101223; DK 2270319 T3 20120813; ES 2388152 T3 20121009; PL 2270319 T3 20120928; PL 2270319 T5 20170630; US 2010319731 A1 20101223; US 8591666 B2 20131126
DOCDB simple family (application)
EP 09010129 A 20090805; AT 09010129 T 20090805; CA 2707878 A 20100616; DE 102009025598 A 20090619; DK 09010129 T 20090805; ES 09010129 T 20090805; PL 09010129 T 20090805; US 81958810 A 20100621